Update the web store promo to be clearer and configurable at run-time.

chrome/browser/prefs/browser_prefs.cc

Index: chrome/browser/prefs/browser_prefs.cc
diff --git a/chrome/browser/prefs/browser_prefs.cc b/chrome/browser/prefs/browser_prefs.cc
index 9200d5da8e1ef6e6c035b23eccddf37b79b6ff07..f758bb65ddd3ffa334edb2b4af6d38d489eef00e 100644
--- a/chrome/browser/prefs/browser_prefs.cc
+++ b/chrome/browser/prefs/browser_prefs.cc
@@ -15,6 +15,7 @@
 #include "chrome/browser/custom_handlers/protocol_handler_registry.h"
 #include "chrome/browser/debugger/devtools_manager.h"
 #include "chrome/browser/download/download_prefs.h"
+#include "chrome/browser/extensions/apps_promo.h"
 #include "chrome/browser/extensions/extension_prefs.h"
 #include "chrome/browser/extensions/extension_web_ui.h"
 #include "chrome/browser/extensions/extensions_ui.h"
@@ -54,6 +55,7 @@
 #include "chrome/browser/ui/webui/new_tab_ui.h"
 #include "chrome/browser/ui/webui/plugins_ui.h"
 #include "chrome/browser/upgrade_detector.h"
+#include "chrome/browser/web_resource/promo_resource_service.h"
 #include "chrome/common/pref_names.h"
 #include "content/browser/host_zoom_map.h"
 
@@ -81,6 +83,7 @@ namespace browser {
 
 void RegisterLocalState(PrefService* local_state) {
   // Prefs in Local State
+  AppsPromo::RegisterPrefs(local_state);
   Browser::RegisterPrefs(local_state);
   FlagsUI::RegisterPrefs(local_state);
   WebCacheManager::RegisterPrefs(local_state);
@@ -90,6 +93,7 @@ void RegisterLocalState(PrefService* local_state) {
   KeywordEditorController::RegisterPrefs(local_state);
   MetricsLog::RegisterPrefs(local_state);
   MetricsService::RegisterPrefs(local_state);
+  PromoResourceService::RegisterPrefs(local_state);
   SafeBrowsingService::RegisterPrefs(local_state);
   browser_shutdown::RegisterPrefs(local_state);
 #if defined(TOOLKIT_VIEWS)
@@ -116,6 +120,7 @@ void RegisterLocalState(PrefService* local_state) {
 
 void RegisterUserPrefs(PrefService* user_prefs) {
   // User prefs
+  AppsPromo::RegisterUserPrefs(user_prefs);
   AutofillManager::RegisterUserPrefs(user_prefs);
   SessionStartupPref::RegisterUserPrefs(user_prefs);
   Browser::RegisterUserPrefs(user_prefs);
@@ -130,6 +135,7 @@ void RegisterUserPrefs(PrefService* user_prefs) {
   NewTabUI::RegisterUserPrefs(user_prefs);
   PluginsUI::RegisterUserPrefs(user_prefs);
   ProfileImpl::RegisterUserPrefs(user_prefs);
+  PromoResourceService::RegisterUserPrefs(user_prefs);
   HostContentSettingsMap::RegisterUserPrefs(user_prefs);
   HostZoomMap::RegisterUserPrefs(user_prefs);
   DevToolsManager::RegisterUserPrefs(user_prefs);